Patents by Inventor Sergey GRACHEV

Sergey GRACHEV has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Magnetic multilayer composite and a method of forming the same
    Patent number: 12354779
    Abstract: The present disclosure relates to a magnetic multilayer composite that may include a core substrate layer, an outer magnetic layer overlying a first surface of the core substrate layer, and an inner magnetic layer underlying a second surface of the core substrate layer. The composite may include a magnetic volume ratio VM/VS of at least about 0.005, where VM is equal to the total volume of magnetic material in the composite and VS is the total volume of substrate. The composite may further include a permeability rating (X, Y), where the permeability rating (X, Y) is equal to a peak point (X, Y) along a plot of the imaginary part of magnetic permeability (??) of the composite plotted as a function of frequency, where X is within the range of 10 MHz to 10 GHz, and Y is greater than 100.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: July 8, 2025
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Sergey Grachev, Domien Volckaert, William C. O'Rourke, Robrecht Moerkerke, Christy De Meyer
  • MAGNETIC MULTILAYER COMPOSITE AND A METHOD OF FORMING THE SAME
    Publication number: 20230091277
    Abstract: The present disclosure relates to a magnetic multilayer composite that may include a core substrate layer, an outer magnetic layer overlying a first surface of the core substrate layer, and an inner magnetic layer underlying a second surface of the core substrate layer. The composite may include a magnetic volume ratio VM/VS of at least about 0.005, where VM is equal to the total volume of magnetic material in the composite and VS is the total volume of substrate. The composite may further include a permeability rating (X, Y), where the permeability rating (X, Y) is equal to a peak point (X, Y) along a plot of the imaginary part of magnetic permeability (??) of the composite plotted as a function of frequency, where X is within the range of 10 MHz to 10 GHz, and Y is greater than 100.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 23, 2023
    Inventors: Sergey GRACHEV, Domien VOLCKAERT, William C. O'ROURKE, Robrecht MOERKERKE, Christy DE MEYER